Concrete-wall mold



C. F. STRAUSBAUGH.

CONCRETE WALL MOLD.

APPLICATION FILED MAR .27,1919.

1,367,438. Patented Feb. 1, 1921.

2 SHEETS-SHEET I- C. F. STRAUSBAUGH.

CONCRETE WALL MOLD.

APPLICATION FILED MAR.27. 1919.

1,367,438. Patented Feb. 1, 1921.

2 SHEETS-SHEET 2.

KKQLFMWW UNITED STATES PATENT OFFICE.

CHARLES FRANCISSTRAUSBAUGH, or nnrnorr. MICHIGAN.

CONCRETE-WALL MOLD.

Application filed March 27, 1919.

To all whom it may concern:

Be it known that I, C ARLns FnANcIs STnAUsBAUeI-I, a citizen of theUnited States, residing at Detroit, in the county of Wayne and State ofllfichigan, have invented oer? tain new and useful ImprovementsinConcrete-l Vall Molds, of which the following is employ novelinterlocking blocks and trans The use of the blocksand members does notinterfere with the shape verse members.

and design of the mold wallsper so, and the mold may be built up asrapidly as a newly laid portion of wallis curedor seasoned.

The mechanical construction entering into my invention will behereinafter specifically described and then claimed, and ref erence willnow be had to the drawing, wherein- Figure 1 is a perspective view ofparts of the mold assembled, and the mold filled with concrete or otherplastic material;

Fig. 2 is asimilar viewshowinga portion of a wall with some of the moldparts re moved therefrom;

Fig. 3 is a perspective view ofaportio'n of a mold wall; 1

Fig. 4 is an enlarged perspective view of a portion of moldwalls'showinga connect ing member therefor;

Fig. 5 is a perspective viewof a detached connecting member; 1

Fig. 6 is a perspective view of interlocked mold blocks showing theouter face thereof;

. Fig. 7 is a similar viewshowing the inner faces of the block; I

Fig. 8 is a planet amodifiedforrn of con necting member suchas'maybeused atthe juncture or angle of two walls;

Fig. 9 is a perspective view of anangular tie block;

Fig; 10 is a similar;viewofinterlocked blocks with the tie block"designed for an offset mold wall; y m pp Fig. 11 isa' similar viewshhiviiig the'man ner in which a tie block enters Wall blocks;

Specification of Letters Patent.

Patented Feb. 1, 1921.

Serial No. 285,659.

Fig. 12 is a perspective View of a modified form ofangulartie block; m I

Fig". 13 1s a similar View of a curved tie block;

Fig. 14 shows views in perspective ofwall blocks to whlch a single tieblock may be connected Fig. 15 is a side elevation of a screw or boltadapted for fastening a wall block to a mold wall plate;

Fig; 16 shows views of a nutorsocket'foi" the screw orbolt; and

Fig. 17 is a perspective view of a modi fied form of wall block.

In the accompanying drawings, the ref erence numeral 2 denotes mold wallplates" and each plate is substantially rectangular in elevation and ofsufiicient thickness to perm1t of said plates belng placedsuperposedrelation adjoining one anotherso as to form a mold wall. Withtwo such Walls in spaced relation the intervening space may be filledwlth concrete 1 or other plastic material.

Each mold wall plate 2 has its upper edges; atits ends provided withnotchesor recesses 8 and when the mold wall plates are placed inabutting assembled relation the recesses coiiperate 1n formmg transversegrooves or openings and the grooves 01" openingsof one mold wall areadapted to transversely al ne with thegroovesor openings of the othermold Wall.

Eachmold Wall plate ma haveitsouter race provided with blocks 22 andthese blocks are preferably placed at the upper and loweredges of theplate, adjacent'the ends thereof so that the blocks of one plate willvertically ahne with the blocks of an adjoining plate, and the blocksatthehdges of the adjoining plates abut each other or approximately so,whereby such blocks may beconnected by a tie block 14. Eachof the blocks22 has a tapered dovetailedtongue24 with thetongue disposedin a verticalplane intermediate the side edges of each block andthetongue tapersinwardly'toward the upper edge of a block so that it will be necessaryto place the tie block 14 on the upper end. ofthe tongue and thenshiftsaid tie block downwardly to connect the mold blocks. Thetoriguesof themoldblocks at the upper edge of each mold plate are slightlylarger than the tongues" of the weeks zit-the lower" edge ofthemoldplateso that when the mold plates are placed in superposed relation thetongues at the upper edge of the mold plate will represent acontinuation of the tongues at the lower edge of the adjacent moldplate. This will permit of the tie plate 14 being placed downwardly overthe tongue 24 to connect all of the contiguous blocks, and in order thatthe tie plate 14 may be employed for this purpose, said tie plate hasits inner face provided with tapered dovetailed grooves 21*. Each tieblock is of a sufficient area to practically interlock four of the moldblocks 22 and to connect the mold blocks to the outer faces of the moldplates 2 I prefer to use screws or bolts 6 and nuts or sockets 2 both ofwhich are shown in Figs. 15 and-.16.

. The bolt or screw 6 has a head 3* adapted to be countersunk in theinner wall of the mold wall plate 2, and the socket 2 has a nut portion5 adapted to be countersunk in the mold blocks 22, so that theconnecting means between the mold wall plates and the blocks will beflush therewith. Vith the sockets 2 permanently located in the blocks 22the screw 6 may detachably support said blocks and should a block beinjured it may be readily removed. 7

. Each tie block 14 has its lower edge provided with a transverse notch19 adapted to register with the recesses 8 of the mold wall plates 2, sothat said tie blocks may fit over transverse connecting members 10'which are placed in the recesses 8 of the mold walls as the mold isbuilt up. These connecting members are best shown in Figs. 1, 4 and 5and each member is 1n the form of a bar that may be seated in therecesses 8 and extend from between the blocks 22 at the upper edges ofadjoining mold wall plates. The side walls of each connecting member, atits ends, are provided with vertical grooves 7, and each groove may haveits walls tapered or beveled to correspond to the taper "or bevel of thewalls of the notches 19, so that each tie plate may be fitted down overthe connecting member and becomeinterlocked therewith, thus binding thewall plate blocks 22 and the tie blocks to the connecting members whichwill prevent lateral displacement or bulging of the mold wall plateswhen assembled as a mold.

.As shownin Fig. 5 each connecting member may have its ends providedwith additional grooves 7 and such grooves will serve two purposes.First, the mold walls may be placed a. greater distance apart should awiderwall be desired, or devices may be anchored on the ends of theconnecting members tofacilitate assembling the mold parts, such devicesforming no part of this invention.

Considering Fig. 1, it will be noted that the mold walls are tiedtogether by the connecting members 10 and when walls are to be formed atan angle to one another I may use angular or curved tie blocks. Anangular tie block 9 is shown in Fig. 9 and besides having its inner faceprovided with dovetailed grooves it has a notch 7 to receive theconnecting member, and it is obvious that the recesses 8 will have thewalls thereof beveled to aline with the walls of the notch 7 to permitof the connecting member extending in an angular direction relative toadjacent connecting members in the same lateral plane. This is bestshown at the left hand side of Fig. 1, where the walls form an L. \Vhenthe walls form a T, some of the connecting members 10 may have angularends so that angle tie blocks 9 may be placed in engagement therewith.

A curved tie block 9 is shown in Fig. 13, and in constructing someconcrete walls or curbings, it may be possible to provide a connectingmember 40 with an angle tie block 9 and a triangular tie block 41,especially when a portion of a wall or curbing is disposed at an acuteangle relative to an adjoining wall or curb portion.

Since some walls may have offset portions, tie blocks 23 may be employedas shown in Fig. 10 where one part of the block is of greater thicknessthan another part. This view of the drawing also shows that a tie blockmay have a tongue 24 at one end thereof and a groove 21 at the oppositeend thereof, and the same is shown in connection with the angular tieblock of Fig. 12, it being understood that mold blocks will be usedhaving tongues to engage in the grooves 21 of the tie blocks. Suchtongued mold blocks have been shown in Fig. 14 and designated 4. Themold block 4 may also have the inner faces thereof beveled or inclinedand the tie blocks employed to interlock the mold blocks will besimilarly formed, as brought out in Fig. 7, whereby the tie blocks willhave a wedging action tending to tighten the mold blocks relative to theconnecting members.

Since the mold wall plates may be of considerable length it may benecessary to use connecting members intermediate the ends thereof andsuch long mold plates are designated 26 in Fig. 2, and have the upperand lower edges thereof provided with single long blocks 21 which areused in lieu of two small mold blocks as at the adjoining edges of moldplates.

In some constructions it may be necessary for the mold blocks at theupper edges of mold plates to extend on to the lower edges of superposedwall plates, as shown in Fig. 4 and thus provide braces or guides forthe upper mold wall plates when assembling the same. Then again, it ispossible to use the long blocks 21 even at the juncture of a pluralityof mold plates. It is in this connection that I do not care to limitmyself to the precise size or shape of the mold wall blocks or even thetie blocks since diflerent kinds of concrete walls will requiredifferent kinds of molds.

It is obvious that the inner faces of the mold wall plates may befinished'to impart a desired finish to the exterior surfaces of theWall, and after the parts of the mold have been removed the openingsleft by the connecting members may be plugged with concrete or otherwiseclosed.

What I claim is 1. The combination of mold plates adapted to be placedin superposed relation to form opposed mold walls, mold blocks carriedby said plates at adjacent edges thereof, connecting members extendingfrom one mold Wall to the other with the ends of said connecting membersat said mold blocks, and tie blocks fitting on said mold blocks and saidconnecting members and holding adjacent mold blocks relative to saidconnecting members.

2. The combination set forth in claim 1, wherein the mold and tie blockshaving tongue and groove connections and said tie ed to be placed insuperposed abutting relation to form opposed mold Walls, said moldplates having the upper edges thereof recessed, mold blocks on said moldplates at the abutting edges thereof, connecting members extending fromone mold wall to the other and protruding from said mold walls, saidconnecting members being seated in the recesses of said mold plates, andtie blocks fitted on said mold blocks and having the lower edges thereofnotched to receive said connecting members, so that said mold and tieblocks are held against displacement relative to said connectingmembers.

4. The combination Set forth in claim 3, wherein said mold and tieblocks have tongue and groove connections.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES FRANCIS STRAUSBAUGH.

Witnesses CHARLES W. DOMINE, GUSTAV O. CILIAX.

